Input: cyttsp - remove useless checks in cyttsp_probe()

This fixes reference-before-check problem; there is no reason to check
if caller passed NULL dev or bus_ops as it is done only by bus-specific
drivers which already do the right thing.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
index 8be2247..f030d9e 100644
--- a/drivers/input/touchscreen/cyttsp_core.c
+++ b/drivers/input/touchscreen/cyttsp_core.c
@@ -523,7 +523,7 @@
 	struct input_dev *input_dev;
 	int error;
 
-	if (!dev || !bus_ops || !pdata || !pdata->name || irq <= 0) {
+	if (!pdata || !pdata->name || irq <= 0) {
 		error = -EINVAL;
 		goto err_out;
 	}